ABB CR-U048AC2L Pluggable Interface Relay - 48 VAC LED, IP40
Part Number: 1SVR405621R5100
Quick Summary
ABB CR-U048AC2L pluggable interface relay is a universal control relay designed for modular automation on DIN rails. Its plug-in design reduces commissioning time and minimizes wiring errors in busy control cabinets. This device carries CE, UL/CSA certifications and UKCA with IP40 protection, ensuring regulatory compliance and durable indoor use. Designed for OEMs and panel builders, it delivers visible status via an integrated LED and supports easy field replacement and maintenance.
Product Information
Extended Description
1SVR405621R5100 ABB: The CR-U048AC2L pluggable interface relay is a univeral relay and is also commonly referred to as an ice cube relay. CR-U relays may be plugged into CR-U sockets and this combination of relay and socket may be seemlessly snap-on mounted onto a DIN Rail. CR-U relays have robust circular pin terminals, designed and manufactured to handle tough, repetitive-use applications and are more durable than standard relays.This relay operates with a 48 V AC rated control supply voltage and has a 2 c/o (SPDT) output with contacts rated at 250 V / 10 A, enabling the possibility of switching multiple circuits with a single input signal. The relay has an integrated test button which is used for the manual actuation of the relay by locking it's output contacts. The test button facilitates easy testing and commissioning. The relay also has an integrated LED, which provides the visual indication of the energization of the relay coil. Standard sockets, logic sockets, pluggable function modules, holders and markers are available as accessories.
EAN
4013614498466
Minimum Order Quantity
10 piece
Customs Tariff Number
85364900
Data Sheet, Technical Information
Catalog 2024 Electronic Relays and Controls - Chapter Interface relays and optocouplers
Instructions and Manuals
Instructions - CR-M, CR-P, CR-U range
CAD Dimensional Drawing
Information - 2D and 3D files for CAD systems
Product Net Width
35 mm
Product Net Height
54.4 mm
Product Net Depth / Length
35 mm
Product Net Weight
0.083 kg
Function
Pluggable universal interface relay CR-U
Sub-Function
Relay with built in LED
Rated Control Supply Voltage (Us)
48 V AC
Rated Operational Voltage
250 V AC
Rated Frequency (f)
50 / 60 Hz
Output
2 c/o (SPDT) contacts
Output Signal
250 V / 10 A
Terminal Type
Pin
Rated Operational Current AC-12 (Ie)
(230 V) 10 A
Rated Operational Current AC-15 (Ie)
(120 V) 3 A | (230 V) 1.5 A
Rated Operational Current DC-12 (Ie)
(24 V) 10 A
Rated Operational Current DC-13 (Ie)
(24 V) 2 A | (250 V) 0.1 A
Rated Insulation Voltage (Ui)
250 V
Degree of Protection
IP40
Mounting Position
1
Standards
CAN/CSA C22.2 No.14 | IEC/EN 63000 | IEC/EN 61810-1 | UL 508
Maximum Operating Voltage UL/CSA
300 V AC
Contact Rating UL/CSA
B300
Pilot Duty UL/CSA
B300
Flammability According to UL94
HB
Ambient Air Temperature
Operation -40 ... +55 °C | Storage -40 ... +85 °C
Maximum Operating Altitude Permissible
Without Derating 2000 m
Conflict Minerals Reporting Template (CMRT)
CMRT - Conflict Minerals Reporting Template
RoHS Information
EU Declaration of Conformity - CR-M, CR-U Pluggable interface relay
RoHS Status
Following EU Directive 2011/65/EU
CCC Certificate
CCC Certificate - Pluggable interface relays CR-U range
CQC Certificate
CQC Certificate, Interface Relays, CR-U, Made in Poland
CSA Certificate
CSA Certificate - Pluggable interface relays CR-P and CR-U
Declaration of Conformity - CCC
CCC Declaration of Conformity, Interface Relays, CR-U, Made in Poland
Declaration of Conformity - CE
EU Declaration of Conformity - CR-M, CR-U Pluggable interface relay
Declaration of Conformity - UKCA
UK Declaration of Conformity - CR-M, CR-U Pluggable interface-relays and accessories
EAC Certificate
EAC_RU_C-DE.ME77.B.00446-19
LR Certificate
LR Certificate - Pluggable interface relays CR-M and CR-U range
RMRS Certificate
RMRS Certificate - Pluggable interface relays CR range, except 60 V and 125 V versions
UR Certificate
UR (ANSI/UL 508) Certificate - Pluggable interface relays / optocouplers CR-M, CR-MX, CR-P, CR-S, CR-U range
VDE Certificate
VDE Certificate - Pluggable interface relays CR-U range
Package Level 1 Units
box 10 piece
Package Level 1 Width
182 mm
Package Level 1 Depth / Length
77 mm
Package Level 1 Height
76 mm
Package Level 1 Gross Weight
0.87 kg
Package Level 1 EAN
4013614374111
Object Classification Code
K
ETIM 7
EC001437 - Switching relay
ETIM 8
EC001437 - Switching relay
ETIM 9
EC001437 - Switching relay
eClass
V11.0 : 27371601
UNSPSC
39122331
E-Number (Finland)
2712772
E-Number (Norway)
4187480
Feature: Pluggable interface relay design with CR-U sockets that snap onto a DIN rail. Business Impact: Enables fast field replacements and minimizes downtime in production lines. Application: Panel builders and OEMs implement modular relay blocks in automation cabinets. Feature: 48 V AC rated control supply supports safe, common control circuits. Business Impact: Allows use with existing PLCs and sensing networks, reducing integration effort. Application: Automation panels, machine controllers, and signaling networks. Feature: 2 c/o SPDT outputs (form C) with rated switching up to 250 V at 10 A. Business Impact: Enables multiplex control of multiple circuits from a single input, reducing component count. Application: Interlocks, signaling, and small-load control in machinery. Feature: Integrated LED indicator and built-in test button for easy commissioning. Business Impact: Simplifies startup and troubleshooting without external test gear. Application: Start-up checks and preventive maintenance in industrial control panels. Feature: Robust circular pin terminals and durable construction for repetitive use. Business Impact: Improves reliability in high-cycle environments and reduces maintenance overhead. Application: Conveyors, packaging lines, and heavy automation. Feature: IP40 protection and wide operating range from -40 to +55 C with installation flexibility. Business Impact: Maintains performance in challenging conditions, lowering derating concerns. Application: Indoor industrial environments and global deployments. Feature: Certifications and RoHS compliance ensure regulatory readiness across markets. Business Impact: Safe, compliant operation and sustainability in regulated industries. Application: Global automation projects and OEM deployments. Feature: Compatibility with ABB CR-U ecosystem including sockets, holders, and CAD data. Business Impact: Streamlines design integration and BOM management for engineers. Application: Panel design, documentation, and manufacturing workflows.
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FAQs
Install the CR-U048AC2L by snapping the pluggable relay into a compatible CR-U socket, then mount the socket onto a standard DIN rail. Ensure proper socket alignment and secure mechanical fit to prevent vibration-induced disconnections. The built-in LED helps confirm energization during commissioning, while the test button enables quick manual actuation testing.
The relay operates with a 48 V AC rated control supply and provides 2 c/o SPDT contacts with an output signal of up to 250 V and 10 A. Operational current ratings include AC-12 up to 10 A at 230 V and DC ratings suitable for low power circuitry, making it versatile for signaling and control tasks.
Yes. It supports a wide temperature range from -40 to +55 C and an altitude capability up to 2000 m without derating. The IP40 enclosure provides basic protection against dust and incidental contact, and the durable circular terminals are designed for repetitive use in factory settings.
The relay carries CE, UL/CSA, and UKCA certifications, along with RoHS compliance. These certifications ensure regulatory compliance for global deployments, safety in control panels, and reduced material risk for sustainability-focused projects.
The pluggable design, integrated LED, and test button reduce commissioning time and downtime during maintenance. Quick field replacement minimizes production interruptions, while compatibility with a full CR-U ecosystem simplifies spares management and BOM control for long-term ROI.